Whitney, B. M., F. Schunck, M. A. Rêgo, and L. F. Silveira. 2013b. A new species of flycatcher in the Tolmomyias assimilis radiation from the lower Sucunduri-Tapajós interfluvium in central Amazonian Brazil heralds a new chapter in Amazonian biogeography. Pp. 297-300 in Handbook of the Birds of the World. Special Volume: New Species and Global Index (del Hoyo et al., eds.).Lynx Edicions, Barcelona. PDFreference page